TO DO list:
* Puff system.
* Check fast NOx calibration data.
* Calibration tank for enclosures.
TO DO:
* Puff system
* Drierite in oven
* Check HOBO#1 and HOBO#2
* Enclosure calibration tank: check temperature, perform leak test.
* Change cartridges on enclosure#2 at 4:45pm local time.
New sequence started. Will end tomorrow afternoon (4:45pm local time). 1) 4955 - 6/7/2019 10:45 to 6/7/2019 12:45
2) 4467 - 6/7/2019 13:45 to 6/7/2019 15:45
3) 4573 - 6/7/2019 16:45 to 6/7/2019 18:45
4) 4700 - 6/7/2019 19:45 to 6/7/2019 21:45
5) 4576 - 6/7/2019 22:45 to 6/8/2019 00:45
6) 4504 - 6/8/2019 1:45 to 6/8/2019 3:45
7) 4681 - 6/8/2019 4:45 to 6/8/2019 6:45
8) 90621 - 6/8/2019 7:45 to 6/8/2019 9:45
9) 4474 - 6/8/2019 10:45 to 6/8/2019 12:45
10) 995 - 6/8/2019 13:45 to 6/8/2019 15:45
In Alaska Standard Time (GMT-9).
We’re in the process of getting started with the standard tank. Detlev injected all the compounds and the tank is ready. Tank is connected to purge line (pump sending air to enclosure).
* tank temperatuare at 20.1°C at 5:45pm local time. Should reach 40°C. Check tomorrow.
* flow rate into enclosure 24.3 L/min.
* flow rate out of tank 10 mL/min.
New sequence: GCMS_Toolik_20190607. Samples TL_20190607_01 to _03: trash, I messed up. Sample TL_20190607_04 is Std3 BVOC (NPL). Then Ambient BVOC samples.
Drained H20 several times and restarted H20 pump. Seems to be working just fine for now. PMT cooler restarted at 2:02pm AST. It still doesn’t work - I give up after several attempts. 5:22pm local time: H2O pump off, PMT cooler off, PMT HV off.
PMT temperature increased to -20°C. Tried to remove air bubbles but didn’t do the trick. I turned off the PMT HV, the PMT cooler and the H20 pump. I will try to troubleshoot tomorrow.
### Daily checks
* Lab temperature = 21.8°C, AC temperature = 65F.
* Case temperature: fast O3 = ~23.2°C, fast NOx = ~20.8°C.
* PMT temperature: fast O3 = -35.4°C, fast NOx = -20.5°C.
Removed bug air bubble in H20 tubings at ~8:40am AST, will keep an eye on PMT temperature to see if that solved the problem. Okay, temperature slowly going down.
* Drierite: OK.
* Fast O3: OK, NO flow rate OK. * Fast NOx: OK. * Gas tanks: OK. * Fast O3 laptop synchronized with time.nist.gov at 8:39am AST.
6 injections at (fast NOx time):
2019-06-06 08:56:43
2019-06-06 08:57:54
2019-06-06 08:58:59
2019-06-06 09:00:11
2019-06-06 09:01:57
2019-06-06 09:03:13
3 flights from 3:30am (local time) to breakfast. First two flights with O3 sonde only (clear gradient from ~10 to ~30ppbv). Third flight with bags as well to collected ambient air samples. Bags analyzed by Catie on TOF. The wind nearly crashed the balloon today around noon. We’ll have to fix a few things before we can lauch it again.
CO2 sensor connected to enclosure. Started collecting data around 3pm local time. Logging every 60 seconds.
4583 - 6/5/2019 15:15 to 6/5/2019 17:154547 - 6/5/2019 18:15 to 6/5/2019 20:154672 - 6/5/2019 21:15 to 6/5/2019 23:154667 - 6/6/2019 00:15 to 6/6/2019 2:154438 - 6/6/2019 3:15 to 6/6/2019 5:154526 - 6/6/2019 6:15 to 6/6/2019 8:15722 - 6/6/2019 9:15 to 6/6/2019 11:15691 - 6/6/2019 12:15 to 6/6/2019 14:154477 - 6/6/2019 15:15 to 6/6/2019 17:154529 - 6/6/2019 18:15 to 6/6/2019 20:154509 - 6/5/2019 14:15 to 6/5/2019 16:154725 - 6/5/2019 17:15 to 6/5/2019 19:154742 - 6/5/2019 20:15 to 6/5/2019 22:1590633 - 6/5/2019 23:15 to 6/6/2019 1:154632 - 6/6/2019 2:15 to 6/6/2019 4:154492 - 6/6/2019 5:15 to 6/6/2019 7:15703 - 6/6/2019 8:15 to 6/6/2019 10:15763 - 6/6/2019 11:15 to 6/6/2019 13:15721 - 6/6/2019 14:15 to 6/6/2019 16:154462 - 6/6/2019 17:15 to 6/6/2019 19:15Note that I messed up yesterday when I restarted the sequence after the calibration runs. In inlet system sequence, a few samples where Ambient OVOC instead of Ambient BVOC. A few chromatrograms are thus empty. I updated the sequence at ~11am local time.
Using Catie’s tanks.
* Calib B tank: samples TL_20190604_01 and TL_20190604_02.
* Calib A tank: samples TL_20190604_03 and TL_20190604_04.
I then restarted the sequence. Following samples are “Ambien BVOC” samples.
90987 - 6/3/2019 15:00 to 6/3/2019 17:004545 - 6/3/2019 17:30 to 6/3/2019 19:3090971 - 6/3/2019 20:00 to 6/3/2019 22:00781 - 6/3/2019 22:30 to 6/4/2019 00:3090951 - 6/4/2019 1:00 to 6/4/2019 3:004645 - 6/4/2019 3:30 to 6/4/2019 5:30655 - 6/4/2019 6:00 to 6/4/2019 8:004536 - 6/4/2019 8:30 to 6/4/2019 10:30259 - 6/4/2019 11:00 to 6/4/2019 13:0090601 - 6/4/2019 13:30 to 6/4/2019 15:30TL_20190601_17 to TL_20190601_44 are ambient air samples.3 injections at (fast NOx time):
2019-06-01 08:34:35
2019-06-01 08:36:05
2019-06-01 08:37:56
I checked HOBO data.
Detlev made changes to the method yesterday (BVOC_SCAN_SIM_190531.M): the oven stays at 120°C between samples now and decreases to 35°C when the run starts (the lower we go, the better the earlier peaks such as isoprene are). Today, we increased the max temperature of the method to 260°C instead of 250°C. Note that we did not change the method’s name, still BVOC_SCAN_SIM_190531.M.
Today we updated the SIM time segments:
We also updated the peaks for each segments:
* alkanes + CFC-11: 41, 43 (alkanes) 101, 103 (CFC-11).
* isoprene: 67, 68.
* CFC-113: 101, 151.
* metacrolein + MVK: 41, 55, 70.
* aromatics (benzene, toluene, xylenes): 78, 91, 106.
* MT: 68, 93, 121, 136.
* SQT: 204, 91, 93, 119, 69.
TL_20190601_01.TL_20190601_02 is NPL.Kaixin and Jacob collected ambient air samples in 4 different bags. Catie analyzed them on the TOF.